Home / 521,605,655.10-782,408,482.65-513,952,904.70

Finding the Fourth Proportional to 521,605,655.10, 782,408,482.65 and 513,952,904.70

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Solution

The fourth proportional to 521,605,655.10, 782,408,482.65 and 513,952,904.70 is: 770,929,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,605,655.10 : 782,408,482.65 = 513,952,904.70 : x
  2. Step 2: Convert to fraction form
    521,605,655.10/782,408,482.65 = 513,952,904.70/x
  3. Step 3: Cross multiply
    521,605,655.10x = 782,408,482.65 × 513,952,904.70
  4. Step 4: Simplify right side
    521,605,655.10x = 402,121,112,319,887,040
  5. Step 5: Solve for x
    x = 402,121,112,319,887,040/521,605,655.10
  6. Step 6: Final answer
    x = 770,929,357.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.